Record Information
Version1.0
Creation Date2014-09-08 02:41:43 UTC
Update Date2016-11-09 01:09:11 UTC
Accession NumberCHEM003621
Identification
Common NameIsobutene
ClassSmall Molecule
DescriptionIsobutylene (or Isobutene) is a hydrocarbon of industrial significance. It is a four-carbon branched alkene (olefin), one of the four isomers of butylene. At standard temperature and pressure it is a colorless flammable gas.
Contaminant Sources
  • Clean Air Act Chemicals
  • HPV EPA Chemicals
  • OECD HPV Chemicals
  • STOFF IDENT Compounds
  • T3DB toxins
Contaminant Type
  • Household Toxin
  • Industrial/Workplace Toxin
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
ValueSource
1,1-DimethylethyleneChEBI
2-MethylpropyleneChEBI
IsobuteneChEBI
IsobutyleneChEBI
IsopropylidenemethyleneChEBI
2-MethylpropeneMeSH
2-Methyl propeneMeSH
Chemical FormulaC4H8
Average Molecular Mass56.106 g/mol
Monoisotopic Mass56.063 g/mol
CAS Registry Number115-11-7
IUPAC Name2-methylprop-1-ene
Traditional Nameisobutylene
SMILESCC(C)=C
InChI IdentifierInChI=1S/C4H8/c1-4(2)3/h1H2,2-3H3
InChI KeyVQTUBCCKSQIDNK-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as branched unsaturated hydrocarbons. These are hydrocarbons that contains one or more unsaturated carbon atoms, and an aliphatic branch.
KingdomOrganic compounds
Super ClassHydrocarbons
ClassUnsaturated hydrocarbons
Sub ClassBranched unsaturated hydrocarbons
Direct ParentBranched unsaturated hydrocarbons
Alternative Parents
Substituents
  • Branched unsaturated hydrocarbon
  • Unsaturated aliphatic hydrocarbon
  • Olefin
  • Alkene
  • Acyclic olefin
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Focal adhesion
  • Microsome
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateGas
AppearanceNot Available
Experimental Properties
PropertyValue
Melting Point-140.3°C
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility18.7 g/LALOGPS
logP1.87ALOGPS
logP1.74ChemAxon
logS-0.48ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity19.93 m³·mol⁻¹ChemAxon
Polarizability7.45 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a4l-9000000000-beae3ae10634d4c9235bSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-9000000000-41116bd83efb5b25f5a9Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-9000000000-a5326fc8cb6350eb0fdaSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-304c3e894ca821af49f6Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-9000000000-707af95448d7eaf15f9aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-9000000000-707af95448d7eaf15f9aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9000000000-b494553b2572eacd8d30Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-9000000000-2aeeb231544bed908c5fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-9000000000-ff52e67c20c817333ab2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-052o-9000000000-009f96487d7bb6f55e8cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-9000000000-608e2188320e6d645b40Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-9000000000-608e2188320e6d645b40Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9000000000-608e2188320e6d645b40Spectrum
MSMass Spectrum (Electron Ionization)splash10-052f-9000000000-a2b0bb3a61d628705d4bSpectrum
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkIsobutylene
Chemspider IDNot Available
ChEBI ID43907
PubChem Compound ID8255
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=22447372
2. https://www.ncbi.nlm.nih.gov/pubmed/?term=23069604
3. https://www.ncbi.nlm.nih.gov/pubmed/?term=23790119